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Shirozulite Mineral Data
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General Shirozulite Information
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 Chemical Formula: |
KMn3(AlSi3)O10(OH,F)2 |
| Composition: |
Molecular Weight = 480.43 gm |
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Potassium 7.32 % K 8.82 % K2O |
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Barium 2.57 % Ba 2.87 % BaO |
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Magnesium 4.76 % Mg 7.89 % MgO |
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Titanium 0.40 % Ti 0.67 % TiO2 |
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Manganese 17.50 % Mn 22.59 % MnO |
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Aluminum 9.88 % Al 18.68 % Al2O3 |
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Iron 2.32 % Fe 2.99 % FeO |
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Silicon 14.85 % Si 31.77 % SiO2 |
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Hydrogen 0.41 % H 3.69 % H2O |
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Oxygen 39.86 % O |
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Fluorine 0.12 % F 0.12 % F |
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- %
F -0.05 % -O=F2 |
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______ ______ |
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100.00 % 100.03 % = TOTAL OXIDE |
| Empirical Formula: |
K0.9Ba0.09Mn2+1.53Mg0.94Fe2+0.2Al0.29Ti0.04Si2.54Al1.47O10(OH)1.97F0.03 |
| Environment: |
Metamorphosed strata-bound Mn ore deposit. (Mn-dominant analogue of phlogopite; structure) |
| IMA Status: |
Approved IMA 2004 (Dana # Added) |
| Locality: |
Tauchi mine, Aichi Prefecture, Japan. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Haruo Shirozu, Professor Emeritus of Kyushu University for his contributions to the crystal chemistry of sheet-silicate minerals. |
| Synonym: |
IMA2001-045 |
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